Car-door-actuating mechanism.



' D. HINDAHL. CAR DOOR ACITUATING MECHANISM. APPLICATION FILED IULYG,ISM-RENEWED DEC. 27,1915.

1 ,1 86,097 v Patented June 6, 1916. 2 SHEETSSHEE'T 1.

a: wil AVIIIIA &

Z0 o0OOOOoo00 o o0oo )b' ooooooooo D. HINDAHL.

CAR DOOR ACTUATING MECHANISM. APPLICATION FILED JULY 6, 1914. RENEWEDDEC. 27,1915.

Patented June 6, 1916.

2 SHEETSSHEET 2- E flnveziZbr throughout the drawings "UNITED STATES mmmutant, or cnrcaeo, rumors, ASSIGNOR to NATIONAL compan a oonronArIoN orname.

PATENT FF1CE.

DUMP can CAR DOORiA-CTUATiNG MECHANI SM.

Application filed July 6, 1914, Serial No. 849,207.

To all whom it may concern Be it lmown that I, DAVID HINDAHL, a citizenof the United States, residing at Chicago, in the county of Cook andState of Illinois, haveinvented certain new and useful Improvements inCar-Door-Actuating Mechanism, of which the following is a specification.This invention relates to improvements in to car door actuatingmechanisms.

The object of my invention is to provide a new and improved car' dooractuating mechanism, and my invention comprises a rotatable shaft, armsrotatably mounted on said shaft and pivotally attached to other arms inturn attached to the dump doors of the car. Fixed to the rotatable shaftare small crank arms arranged to engage the first named arms to effect arotation thereof comparatively long arms to the shorter .80 crank arms,at the same time limiting, to a great extent,'the friction whichwouldordinarily be present in-efiecting such a transferenceof weight; Theseshort crank farms and sebond named arms are so constr'ifcted thatthe'former will efiect the positive displacement of the latter fromclosed-position, permitting the doors to o sired to unload the car.

Theconstructionand o eration of myde -f 'vice is set forth .in theollowing specificaef tion and shown in the accompanying-draw ings, inwhich:

'Figure 1 is a side elevation of acar showing my-i'nventionapplied-thereto; Fig.1 2 ,is. a detail transverse section. showinga doora in closed position; Fig. 3is a view. similar to Fig. 2. showing adoorin-op'en position ;i. Fig.4: is a detail of theffshaft operatingmechanism; Fig. .5 is a detail of the door; actuating mechanism showing'aZdoorj-Tinfl is'afdetail-sect n closed-position, and Fl {-6 along thelin'e6 6of a ga- 2. Like numerals refer to like elements 1 Y iiipsi-gnates generally a havingtm Specification of Letters Patent.

pen when is idej Patented June 6,1916. Renewed December 27, 1915. SerialNo. 68,947.

V side walls 11 secured side stakes 12, as

shown in Fig.1. Bearing brackets 13 are provided adjacent the lowerportion of these:

stakes 12 and are attached thereto. An

A portion of each of these sleeves 15 closely fits and isrotatablymounted in the brackets 13, thereby insuring proper journaling of theshaft 1 1 forrotation, notwithstanding its non-circular cross section.Arms 17 are provided at suitable intervals on the shaft 14, thesev armsbeing composed of the spaced apart "strips 17 rotatably mounted adjacent,one extremity onthe sleeve 15 and held in spaced relation by thimbles17 through which extend pins or'rivets' 17, retaining them in place.Other arms 18 are provided, these arms having slots 18 adjacent oneextremity thereof. These slotted extremities of the arms 18 are locatedbetween the; strips 17 of arms 17 and a pivotal connection is.

provided by ,means of pin 19, shown'in" Figs. ,2 and 5, for example.'-At theirother ex-.

tremities these arm 0r"shaft'20.

The car 10 is provided of each -of these doors: 10 on the "under sidethereof, arefattachedbrackets.21, depending each or these" bracketsbeing provided-With a j slot 21 adjacent, their lower. iextr'emities 1The rod 1 20 extends through "andffits'iin,then.

slots 21% as clearly ,shown-iin Fig-. 5, -for==-' downwardly andoutwardlyof said -'-doors,

These orankTmembers are provided with the,

.Figifg'jofth' dr wings, ana rafurtherf-pro? vided with cam faces-23",'-see FigsQQt-and V The arms :18 .are' cut away'flor formed with a;

want roundediedge or forward ,p than 18,

. ace-Fig; 3.

s 18.are attached to a rod I v with'a-plurality of g dumping doors 10and at the forwardedge I T tremity. .fitted .0111 the rod; Crank".morn;- p f bers 23- are provided' -preferably formed line;"-"tegralwiththe 'sleevernembers '15 and l0f-. j ;1-- catedbetweenjtheystrips 117?, ofigarms '17'., 1 a.- hook fportions-23arranged toeng'age the I .thi'mbles 17 onpin's 17, as'clearlvshown-in 2ejueawa ,porti n; 'atf 1 8 thereby providing 1 l a fs'houlder 18whichfi'n" turn {isgprov ded 1 i above described mechanism is asfollows: Rotation in the proper direction is imparted to shaft 14 andcrank arms 23, by virtue of their engagement with the thimbles and pins17 -17, respectively, which operates to rotate the arms 17 with theshaft. 14, thereby drawing up the doors 10 toward closing position, bymeans of the operation.

of arms 18. When the doors l0 approach their closed position the roundededge 18 of shoulder 18 contacts with the cam faces 23 of the crank arms23 causingthe arms 18 to be drawn upwardly of the car relative to arms17 until shoulders 18 rest firmly on the top of crank arms 23, as shownFig. 2. This relative movement or sliding of one armwith respect to theother is permitted by means of the slots 18 in arms 18, as

'that the transfer of the weight of the doors from the arms 17 to thecrank-arms 23 will be effected with a minimum of frictional resistance.

When in the position shown in Fig. 2, which I have termed closed orclosing position, a face of the cut-away portion 18? of arms 18' willlie adjacent to and contact with an edge of the crank arms 23. By meansof this arrangement, when it is desired to open the doors, a reverserotation may be imparted-to the shaft 14, whereupon the contact of thecrank arms withthe arms 18 will operate to move the arms 17 andl8 fromthe position shown in Fig. 2. I preferably arrange and construct theparts of my device so that when in closing or closed position, as shownin Fig. 2, the centers of support of arms 18, and consequently the doors10 will lie in substantially vertical aline- 'ment with the center ofthe shaft 14 so as to substantially aid in insuring against accidentalmovement of the arms from supporting position in which position the loadon the doors 10 is received by the crank arms 23 and consequently theshaft14. To

effect the rotation of the shaft 14, I attach star wheel'30 thereto.Also attached to the 6 shaft 14 adjacent the star wheel 30, is a thering portion 32- of thesocket member 33.

collar or sleeve 31 upon which is mounted A pawl or .dog 34 is pivotedto the socket member 33 and may be thrown into position lever orengagingithe star wheel 30 so that when a andle is placed in the socketmemweeps? ber 33, proper oscillation of the latter will result inproperly rotating the shaft 14, as will be apparent. A pivotally mounteddog or pawl 36 is further provided, a portion of the same being shown inFig. 4, to prevent reverse rotation of the shaft 14 when it isundesirable.

It will be apparent that while I have described and shown my device withmore or less particularity, the same is susceptible of manymodifications and changes, and I do not wish to be restricted to theform shown or described beyond the scope of the appended claims.

What I claim is 1. In combination with-a car having a dump door, ashaft, an arm. rotatably mounted on said shaft, a second arm operativelyconnected to said door, said arms being pivotally connected, and anoperating arm attachedto said shaft and arranged to actuate said armsupon proper rotation of said shaft to close said door, said member beingfurther arranged to support said door when in closed position.

2. In combination with a car having a dumpdoor, a shaft, an armrotatably mounted on said shaft, a second arm operatively connected tosaid door, otally connected, and an operating member attached to saidshaft and arranged to coact with one of said arms to close said door.upon proper rotation of said shaft, said member being further arrangedto coact with one of said arms to support said door in closed position.3. In combination with with a car havmg a' dump door, a shaft, an armrotatably mounted on said shaft, a second arm opera tively connected tosaid door, said arms be-- ing pivotally connected, and means carried bysaid shaftto actuate said arms to close said door, said means being alsoarranged to support said door when in closed position.

4. In combination with a car having a dump door, a shaft, an armrotatably mounted on said shaft, a second arm operatively connected tosaid door, said arms being pivotally connected, and means carried bysaid shaft to actuate said arms to close said. door, said means beingalso arranged to support said door when in closed ositidn, said meansbeing arranged to positively displace said arms from closed positionwhen said shaft is properly rotated.

5' In combination with a car having a dump door, a shaft, an armrotatably mounted on said shaft, a second arm operatively connected tosaid door, said arms being pivotally connected, and an operating arm attached to said shaft and arranged to actuate said arms upon properrotation of said shaft to close said door, said member being furtherarranged to support said door when said arms being piv-' in closedposition, said means being also arranged to coact with one of said armsand displace the same from closed position upon proper rotation of saidshaft.

6. In combination With a car having a dump door, a shaft, an armrotatably mounted on said shaft, a second arm operatively connected tosaid door, said arms being pivotally connected, a crank member attachedto said shaft and arranged to actuate said first named arm upon properrotation of said shaft to close said door, said second named arm beingprovided with a shoulder adapted to rest on said crank arm when saiddoor is in closed position,

7. In combination with a car having a dump door, a shaft, an armrotatably mounted on said shaft and constructed of spaced apart strips,a crank arm secured to said shaft and located between said strips, saidcrank arm being adapted to operate said first named arm on properrotation of said shaft, and a second arm operatively connected to saiddoor, said arm being pivotally connected to said first named arm andadapted to fit between the strips thereof when said door is in closedposition, said last named arm being provided with a shoulder arranged torest upon said crank arm when said door is in closed position.

8. In combination with a car having a dump door, a shaft, an armrotatably mounted on said shaft and constructed of spaced apart strips,a crank arm secured to said shaft and located between said strips, saidcrank arm being adapted to operate said first named arm on properrotation of said shaft, and a second'arm operatively connected. to saiddoor, said arm being pivotally connected to said first named arm andadapted to fit between the strips thereof when said door is in closedposition, said last named arm being provided with a shoulder arranged torest uponv said crank arm when sald door is in closed position, saidsecond named arm being further provided with a portion lying adjacentsaid crank arm when in closed position, the latter being arranged uponproper rotation of said shaft to positively displace said second namedarm from closed position.

9. In 'co-mbination with a car havinga dump door, actuating meanscomprising a pair of pivotally connected arms, one of said arms having ashoulder, and a third arm having a cam portion and mountedconcentrically with respect to and arranged to actuate one of said firstarms to effect closing of said doors, said shoulder of said arm beingadapted to roll on said cam portion as said doors approach closingposition.

10,. In combination with a car having a dump door, actuating meanscomprising a pair of pivotally connected arms, one of said arms having ashoulder, and a third arm having a cam portion and mountedconcentrically with respect to and arranged to actuate one of said firstarms to effect closing of said doors, said shoulder of said arm beingadapted to roll on said cam portion as said doors approach closingposition, said shouldered arm and thereby said door being supported onsaid third arm when in closed position.

In testimony whereof, I have subscribed my name.

DAVID HINDAHL. Witnesses:

C. E. JoReENsEN, E. E. SLATER.

